<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=569520
-->
<head>
  <title>Test for Bug 569520</title>
  <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=569520">Mozilla Bug 569520</a>
<p id="display"></p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
<script type="application/javascript">

/** Test for Bug 569520 **/
SimpleTest.waitForExplicitFinish();
SimpleTest.requestFlakyTimeout("untriaged");

var start = window.performance.now();
var firstListenerArg;
var secondListenerArg;
var thirdListenerTime;

// callback arg is in the same timeline as performance.now()
function thirdListener(t) {
  thirdListenerTime = t;

  ok(secondListenerArg >= firstListenerArg, // callback args from consecutive requestAnimationFrame
     "Second listener should fire after first listener");

  ok(thirdListenerTime >= secondListenerArg,
     "Third listener should fire after second listener");

  ok(firstListenerArg >= start, "First listener should fire after start");

  SimpleTest.finish();
}

// callback arg is from requestAnimationFrame and comparable to performance.now()
function secondListener(t) {
  secondListenerArg = t;
  requestAnimationFrame(thirdListener);
}

function firstListener(t) {
  firstListenerArg = t;
  requestAnimationFrame(secondListener);
}

addLoadEvent(function() {
    setTimeout(function() {
      requestAnimationFrame(firstListener);
    }, 100);
  });




</script>
</pre>
</body>
</html>
